Enhanced magnetoresistance in nanocrystalline magnetite

M. Venkatesan*, S. Nawka, S. C. Pillai, J. M.D. Coey

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)


The study of magnetic and magnetotransport properties of nanoparticulate magnetite with different grain size was presented. The study was done by using x-ray diffraction, microscopy, magnetometry, and magnetoresistance measurements. It was found that magnetization was sensitive to preparation conditions and varied significantly with grain size. It was also found that magnetoresistance of pressed powder compacts in materials composed of small grain size magnetite particles prepared by coprecipitation was significantly enhanced.

Original languageEnglish
Pages (from-to)8023-8025
Number of pages3
JournalJournal of Applied Physics
Issue number10 3
Publication statusPublished - May 15 2003
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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